Fast Healing 3 (Ex): A rotlord that devours a Small or Medium-size corpse gains the ability to heal damage at a rate of 3 hit points per round. Each devoured corpse provides the rotlord with 24 hours of fast healing. A rotlord can devour a Small corpse as a full-round action or a Medium-size corpse in 2 rounds.

Immunities (Ex): A rotlord is immune to bludgeoning damage and poison.

Cold and Fire Resistance 10 (Ex): A rotlord ignores the first 10 points of damage from any attack that deals cold or fire damage.